题解 | #遍历字典#

operators_dict = {"<": "less than", "==": "equal"}
print("Here is the original dict:")
for i in list(sorted(operators_dict.keys())):
    v = operators_dict.get(i)
    print("Operator %s means "f"{v}""."%i)
operators_dict.update({">": "greater than"})
print()
print("The dict was changed to:")
for j in list(sorted(operators_dict.keys())):
    va = operators_dict.get(j)
    print("Operator %s means "f"{va}""." %j)